Hydrocarbon-motor.



l0. mum PAI'HNTED JULY 4L, 1905. A .11 LOW (2; A. WAWMANN,

HYDROUARBON MOTOR APPLICATION FILED DEC. 3, 1903.

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.lnr'rnn Tamas Patented July 4, 1905..

PATENT Orricn.

ABBOT AUGUSTUS LOW, OF HORSESHOE, AND AUGUST \VASSlVlANN, OF ASTORIA,NEW YORK; SAlD WASSMANN ASSIGNOR TO SAll) LOl V.

l lYllllFtWC/AWSUN MUTOFt.

SPECIFICATION forming part of Letters Patent No. 793,885, dated July 4,1905.

Application filed December 3, 1903. Serial No. 183,568.

To all Hill/077% i1 may concern:

Be it known that we, Armor AUeUs'rUs Low, residing at Horseshoe, St.Lawrence county, and AUGUST WAssMANn, residing at Astoria, Queenscounty, State of New York, citizens of the United States, have inventedcertain new and useful lmprovements in Hydrocarbon- Motors, of which thefollowing is a specification sufficient to enable others skilled in theart to which the invention appertains to make and use the same.

Our improvements relate to marine motors which are actuated byintermittent explosions of vaporized hydrocarbon; and it has for itsobject to regulate and maintain a continuous uniform flow of wateraround the discharge end of the conduit for the products ol combustion,so as to cool ofl that portion of the conduit during the intervalsbetween the explosions in the combustion-chamber, and thereby promotethe condensation of the gases; and to this end the invention consists inthe novel construction and combination of parts,as hereinafter morefully described, shown in the drawing, and then particularly pointed outin the appended claims.

The accompanying drawing, which, with the characters of referencethereon, forms a part of this specification, illustratesdiagrammatically the practical embodiment of our invention in a vessel.

B represents the hull ol a boat or marine vessel of any kind submergedmainly below the water-line w w.

E is a gas, kerosene, or other hydrocarbon engine of any description,the operative parts and connections being omitted in the drawing, withthe exception of the power-shaft a and the discharge-conduit l).

R is a rotary pump, the driving-wheel r of which is operated directly bya pulley a", formed on or attached to the power-shaft a of the engine Ethrough the medium of the belt 1". The rotary pump R when the engine Eis in operation and provided with the inlet sea-gate I and outletsea-gateU are both open forces a continuous current of fresh cold waterinto and through the water-jacket or cooling-chamber C, in which thelower portion or horizontal extension (Z 01? the dischargecon duit D issituated. A check-valve v." is interposed in the inlet-pipe 1f betweenthe inlet sea-gate I and the rotary pump R, and a check-valve (Z is alsosituated in the discharge pipe (Z to prevent the possibility of backpres sure therein.

The discharging-cond nit l) is provided with a relief valve or damper(7Z which may be opened in whole or in part while the engine is startedor to regulate or modify the tension within the said discharge-conduit,if desired.

The operation is as follows: The engine having been started and both theinletand outlet sea-gates l and 0 having been opened, a continuoussupply of cold water is injected into the chamber or jacket C, coolingthe products of combustion in the discharge-pipe (Z, and thereby tendingto create a vacuum therein and at the same. time forcibly ejecting theproducts of combustion through the outlet sea-gate 0, this enforcedejection of the products of combustion by the water also tending toincrease the vacuum in the discharge-conduit by suction, so that thepower of the motor is augmented to that extent, while discharging ofsaid products is mutiled or rendered practically noiseless. The forcedcurrent of cold freshwater acting continuously cools oh the dischargeend of the conduit in the intervals between the ejection of the productsof combustion, and thereby promotes the condensation of the gases priorto their actual contact with the water, hence lessening the noise andpreventing their escape in gaseous form into the atmosphere.

lit is to be noted that our means for effecting the ejection of theproducts of combustion are situated below the water-line w '20, so thatthe resistance of the water has to be overcome, and this We accomplishby the rotary pump R, which not only relieves the discharged productsfrom all need 01" overcoming such water resistance, but, as a matter offact, sucks out and ejects such products through the gate 0 against theresistance of the external water. In other words, the retary pump R doesthe work and insures the positive discharge of the products ofcombustion in such manner that the latter have to overcome noresistance, but are taken up, absorbed, and ejected by the water. Thesuction thus created in the discharge-conduit is augmented by thecondensation of the prodnets of combustion by the cold water in thejacket G, the partial vacuum thus created reducing the resistance to theminimum and adding to the effective power of the motor. This decrease inresistance is so great, as we have found by actual test and experience,that we are enabled to materially reduce the diameter of thedischarge-pipe (Z, as indicated in the drawing, with beneficial results.

The continuous flow of' water obtained by the use of the rotary pump Ris an important factor in insuring the smooth and noiseless operation ofthe motor, since it insures the cooling of the discharge end of theconduit during the intervals between the actual ejection of the productsof combustion.

hat we claim as our invention, and desire to secure by Letters Patent,is-

1. In a motor-driven vessel, the combination with an internal-combustionmotor for driving the same, of a water-jacket disposed fresh cold waterfrom the exterior of the vessel, a rotary pump interposed between saidinlet and the water-jacket for insuring a continuous flow of fresh coldwater into the waterjacket, an inlet seagate, and an outlet sea-gate,and means for driving said pump directly from the shaft of the motor.

2. In a motor-driven vessel, the combination with an internal-combustionmotor for driving the same, of a water-jacket disposed transversely ofthe hull, an outlet sea-gate controlling the outlet from saidWater-jacket, an inlet-pipe for fresh cold water disposed below thewater-line, an inlet sea-gate in said pipe, a rotary pump mounted onsaid pipe and positively driven directly from the shaft of the motor andarranged to force a continuous flow of fresh cold water through the saidpipe and water-jacket, a check-valve in the discharge-conduit from themotor within the water-jacket, and a relief-valve in saiddischarge-conduit between said check-valve and its connection with themotor, all substantially as and for the purpose specified.

ABBOT AUGUSTUS LOWV. AUGUST WASSMANN.

lVitnesses:

D. W. GARDNER, Gno. WM. MIATT.

